There isn't a way, but you can Favorite the question as a way to notify yourself to return later.
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George CumminsApr 21 '14 at 19:39

that would mean i would have to make it a point to check my favorites everyday to make sure i don't have anything left over from the last time i was here. Can we not have something akin to gmail and mark it unread or star it to make it stand out? Could this be a feature request?
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Abhishek AsthanaApr 21 '14 at 19:45